EP2153522A4 - Fractional-n synthesized chirp generator - Google Patents
Fractional-n synthesized chirp generatorInfo
- Publication number
- EP2153522A4 EP2153522A4 EP08755786A EP08755786A EP2153522A4 EP 2153522 A4 EP2153522 A4 EP 2153522A4 EP 08755786 A EP08755786 A EP 08755786A EP 08755786 A EP08755786 A EP 08755786A EP 2153522 A4 EP2153522 A4 EP 2153522A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- fractional
- chirp generator
- synthesized chirp
- synthesized
- generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
- H03L7/1974—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
- H03L7/1976—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division using a phase accumulator for controlling the counter or frequency divider
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US92452307P | 2007-05-18 | 2007-05-18 | |
| PCT/US2008/064003 WO2008144579A2 (en) | 2007-05-18 | 2008-05-16 | Fractional-n synthesized chirp generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2153522A2 EP2153522A2 (en) | 2010-02-17 |
| EP2153522A4 true EP2153522A4 (en) | 2012-02-29 |
Family
ID=40026925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08755786A Withdrawn EP2153522A4 (en) | 2007-05-18 | 2008-05-16 | Fractional-n synthesized chirp generator |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7791415B2 (en) |
| EP (1) | EP2153522A4 (en) |
| WO (1) | WO2008144579A2 (en) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8188796B2 (en) * | 2010-07-19 | 2012-05-29 | Analog Devices, Inc. | Digital phase-locked loop clock system |
| US10033192B2 (en) * | 2011-11-03 | 2018-07-24 | Raytheon Company | Genset with integrated resistive loadbank system to provide short pulse duration power |
| US8866667B2 (en) | 2012-02-22 | 2014-10-21 | Honeywell International Inc. | High sensitivity single antenna FMCW radar |
| US9081094B2 (en) | 2012-02-22 | 2015-07-14 | Honeywell International Inc. | Aircraft radar altimeter structure |
| US9297885B2 (en) | 2012-07-27 | 2016-03-29 | Honeywell International Inc. | Method of system compensation to reduce the effects of self interference in frequency modulated continuous wave altimeter systems |
| US9194946B1 (en) * | 2012-09-10 | 2015-11-24 | Honeywell International Inc. | Combined FMCW and FM pulse-compression radar systems and methods |
| US9660605B2 (en) | 2014-06-12 | 2017-05-23 | Honeywell International Inc. | Variable delay line using variable capacitors in a maximally flat time delay filter |
| US10018716B2 (en) | 2014-06-26 | 2018-07-10 | Honeywell International Inc. | Systems and methods for calibration and optimization of frequency modulated continuous wave radar altimeters using adjustable self-interference cancellation |
| US9921295B2 (en) * | 2014-12-30 | 2018-03-20 | Texas Instruments Incorporated | Multiple chirp generation in a radar system |
| US9253727B1 (en) | 2015-05-01 | 2016-02-02 | Link Labs, Inc. | Adaptive transmission energy consumption |
| US9264099B1 (en) * | 2015-06-02 | 2016-02-16 | Link Labs, Inc. | Frequency-block hopping |
| EP3107213B1 (en) * | 2015-06-18 | 2021-01-06 | Nxp B.V. | Frequency synthesizer circuit with linearized gain of the controlled oscillator |
| US9826714B2 (en) * | 2015-08-13 | 2017-11-28 | Garrity Power Services Llc | Tracking sensor |
| WO2018073785A1 (en) | 2016-10-19 | 2018-04-26 | Findster Technologies Sa | Method for providing a low-power wide area network and network node device thereof |
| CN106708166B (en) | 2017-01-09 | 2020-03-10 | 京东方科技集团股份有限公司 | Signal generator and signal generating method |
| US10783418B2 (en) | 2017-10-16 | 2020-09-22 | Semtech Corporation | Transmitting tag |
| US11460203B2 (en) | 2017-11-06 | 2022-10-04 | Measured Air Performance, LLC | Exhaust demand control system and methods |
| US10812946B2 (en) | 2018-02-22 | 2020-10-20 | Cisco Technology, Inc. | Reliable link layer multicast in a low power wide area network |
| EP3531162B1 (en) * | 2018-02-27 | 2024-01-17 | NXP USA, Inc. | Chirp linearity detector for radar |
| IT201800004258A1 (en) | 2018-04-05 | 2019-10-05 | MANAGEMENT SYSTEM OF TRAFFIC LIGHT SYSTEMS PRESENT ALONG THE ROUTE OF RUNNING VEHICLES DUE TO EMERGENCY | |
| US10938440B2 (en) * | 2018-05-17 | 2021-03-02 | Cisco Systems Canada Co. | Efficient methods for generating chirp spread spectrum signals |
| US11035715B2 (en) | 2019-01-29 | 2021-06-15 | Chevron U.S.A. Inc. | Devices, systems and methods for wirelessly monitoring liquid storage containers |
| CN113206680B (en) * | 2020-01-16 | 2022-09-30 | Oppo广东移动通信有限公司 | Electronic device, wireless signal transceiver, signal generating device and method |
| EP4104154A1 (en) | 2020-02-11 | 2022-12-21 | Dryad Networks GmbH | Forest fire early detection method and forest fire early detection system |
| DE102020116358A1 (en) | 2020-06-22 | 2021-12-23 | e.kundenservice Netz GmbH | Data processing device for receiving measurement data |
| US11709247B2 (en) * | 2020-09-22 | 2023-07-25 | Ay Dee Kay Llc | Fast chirp synthesis via segmented frequency shifting |
| DE102021128720A1 (en) | 2021-07-19 | 2023-01-19 | Dryad Networks GmbH | METHOD AND DEVICE FOR DETECTING FOREST FIRES |
| AU2022314160A1 (en) | 2021-07-19 | 2024-02-01 | Dryad Networks GmbH | Method and apparatus for the detection of forest fires |
| DE102021120703A1 (en) | 2021-08-09 | 2023-02-09 | Dryad Networks GmbH | LORAWAN MESH GATEWAY NETWORK AND PROCEDURES FOR LOCATING A FOREST FIRE |
| DE102021120702A1 (en) | 2021-08-09 | 2023-02-09 | Dryad Networks GmbH | LORAWAN GATEWAY NETWORK AND PROCEDURES |
| DE102021131104A1 (en) | 2021-11-26 | 2023-06-01 | Dryad Networks GmbH | FOREST FIRE EARLY DETECTION SYSTEM WITH PIEZO/BI-METAL SENSOR AND METHOD OF OPERATION OF A FOREST FIRE DETECTION SYSTEM |
| KR102661571B1 (en) * | 2021-12-08 | 2024-04-29 | 한국전자기술연구원 | PLL-based chirp signal generator |
| WO2023165216A1 (en) * | 2022-03-03 | 2023-09-07 | 加特兰微电子科技(上海)有限公司 | Phase lock loop, radar system, and method for randomizing initial phase of fmcw signal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294936B1 (en) * | 1998-09-28 | 2001-09-25 | American Microsystems, Inc. | Spread-spectrum modulation methods and circuit for clock generator phase-locked loop |
| US20050013343A1 (en) * | 2003-04-28 | 2005-01-20 | Accent S.R.I. | Spread-spectrum clock signal generator |
| US20050213697A1 (en) * | 2002-03-12 | 2005-09-29 | Hisashi Adachi | Frequency modulator, frequency modulating method, and wireless circuit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020022465A1 (en) * | 2000-08-15 | 2002-02-21 | Mccullagh Michael J. | Apparatus and method for integrated frequency hopping and GPS receiver |
| JP4373267B2 (en) * | 2003-07-09 | 2009-11-25 | 株式会社ルネサステクノロジ | Spread spectrum clock generator and integrated circuit device using the same |
| US6919744B2 (en) * | 2003-08-20 | 2005-07-19 | Agere Systems Inc. | Spectrum profile control for a PLL and the like |
| US7015733B2 (en) * | 2003-10-10 | 2006-03-21 | Oki Electric Industry Co., Ltd. | Spread-spectrum clock generator using processing in the bitstream domain |
| US7389095B1 (en) * | 2005-01-24 | 2008-06-17 | Nvidia Corporation | Variable frequency clock generator for synchronizing data rates between clock domains in radio frequency wireless communication systems |
| JP2007259122A (en) * | 2006-03-23 | 2007-10-04 | Renesas Technology Corp | Semiconductor integrated circuit for communication |
| US8037336B2 (en) * | 2006-05-15 | 2011-10-11 | Stmicroelectronics Pvt, Ltd. | Spread spectrum clock generation |
| US7924069B2 (en) * | 2006-06-28 | 2011-04-12 | Qualcomm Incorporated | Multi-modulus divider retiming circuit |
-
2008
- 2008-05-16 US US12/122,635 patent/US7791415B2/en active Active
- 2008-05-16 WO PCT/US2008/064003 patent/WO2008144579A2/en active Application Filing
- 2008-05-16 EP EP08755786A patent/EP2153522A4/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294936B1 (en) * | 1998-09-28 | 2001-09-25 | American Microsystems, Inc. | Spread-spectrum modulation methods and circuit for clock generator phase-locked loop |
| US20050213697A1 (en) * | 2002-03-12 | 2005-09-29 | Hisashi Adachi | Frequency modulator, frequency modulating method, and wireless circuit |
| US20050013343A1 (en) * | 2003-04-28 | 2005-01-20 | Accent S.R.I. | Spread-spectrum clock signal generator |
Also Published As
| Publication number | Publication date |
|---|---|
| US20080284531A1 (en) | 2008-11-20 |
| EP2153522A2 (en) | 2010-02-17 |
| WO2008144579A3 (en) | 2009-12-30 |
| WO2008144579A2 (en) | 2008-11-27 |
| US7791415B2 (en) | 2010-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20091118 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SEMTECH CORPORATION |
|
| DAX | Request for extension of the european patent (deleted) | ||
| A4 | Supplementary search report drawn up and despatched |
Effective date: 20120131 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: H03L 7/197 20060101ALI20120125BHEP Ipc: H03K 5/01 20060101AFI20120125BHEP |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20120828 |